Research on convective heat transfer enhancement of a field synergy channel
In order to enhance the heat transfer of penetrating liquid cooling technology,a twisted channel with field synergy advantage of convective heat transfer was proposed.The characteristic curve and surface were extracted from the channel struc-ture,and the corresponding characteristic equations were established.The characteristics of heat transfer field synergy,flow re-sistance and heat transfer were investigated numerically and experimentally.The results show that,the heat transfer field synergy of the twisted channel is higher in compared with straight channel.The two structural parameters,namely the unit length and fluctuation amplitude,have significant effects on flow resistance and heat transfer.The average temperature rise of the heat source surface of the twisted channel can be reduced by about 30％without increasing the flow resistance.The flow resistance and heat transfer prediction models of the twisted channel were established based on the structural parameters and Reynolds number.Fur-thermore,the reliability of the model was verified by experiment.
Twisted channelEnhanced heat transferField synergyFlow resistancePrediction model
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